May weather forecast
Lieto, Finland

May

Weather in May

May, the last month of the spring in Lieto, is a refreshing month, with an average temperature varying between 13.2°C (55.8°F) and 6.7°C (44.1°F).

Temperature

Lieto's May weather brings a rise in high-temperatures, moving from a chilly 6.8°C (44.2°F) in April to a moderate 13.2°C (55.8°F). Lieto witnesses a consistent average low-temperature of 6.7°C (44.1°F) throughout May.

Humidity

The least humid month is May, with an average relative humidity of 71%.

Rainfall

In Lieto, Finland, in May, during 12 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 133.7 rainfall days, and 390mm (15.35") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.8 snowfall days, in May, Lieto aggregates 13mm (0.51") of snow. In Lieto, Finland, during the entire year, snow falls for 60.5 days and aggregates up to 454mm (17.87") of snow.

Daylight

In May, the average length of the day is 17h and 19min.
On the first day of the month, sunrise is at 05:23 and sunset at 21:31. On the last day of May, sunrise is at 04:14 and sunset at 22:41 EEST.

Sunshine

In Lieto, the average sunshine in May is 10.2h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, a daily UV index of 4 turns into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

What are the temperatures in May?
In May, the average high-temperature and low-temperature are 13.2°C (55.8°F) and 6.7°C (44.1°F) respectively.
What is the least humid month?
The least humid month is May, with an average relative humidity of 71%.
What is the average humidity in May?
In Lieto, the average relative humidity in May is 71%.
How much does it rain in May?
In Lieto, in May, it is raining for 12 days, with typically 27mm (1.06") of accumulated precipitation.
What is the last month it snows?
May is the last month it regularly snows. During 0.8 snowfall days, in May, Lieto aggregates 13mm (0.51") of snow.
What is the average length of the day in May?
In May, the average day length in Lieto is 17h and 19min.
When is the sunrise / sunset in May?
In May, on the first day of the month, sunrise is at 05:23 and sunset at 21:31. On the last day of the month, sunrise is at 04:14 and sunset at 22:41 EEST.
How long on average sun shines in May?
In Lieto, the average sunshine duration in May is 10.2h.
What is the UV index intensity in May?
In Lieto, Finland, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Lieto, Finland
  • Average high temperature in May: 13.2°C

The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-1.9°C).

  • Average low temperature in May: 6.7°C

The months with the highest average low temperature are July and August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).

Average pressure in May
Lieto, Finland
  • Average pressure in May: 1014.9mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).

Average wind speed in May
Lieto, Finland
  • Average wind speed in May: 14.4km/h

The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).

Average humidity in May
Lieto, Finland
  • Average humidity in May: 71%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).

Average rainfall in May
Lieto, Finland
  • Average rainfall in May: 27mm

The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).

Average rainfall days in May
Lieto, Finland
  • Average rainfall days in May: 12 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in May
Lieto, Finland
  • Average snowfall in May: 13mm

The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May
Lieto, Finland
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Lieto, Finland
  • Average daylight in May: 17h and 2min

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).

  • Average sunshine in May: 10h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).

Average sunshine days in May
Lieto, Finland
  • Average sunshine days in May: 17.2 days

The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (9.6 days).

Average UV index in May
Lieto, Finland
  • Average UV index in May: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in May
Lieto, Finland
  • Average cloud cover in May: 40

The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in May
Lieto, Finland
  • Average visibility in May: 10km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).

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